EP 1571853 A2 20050907 - Reflection type liquid crystal display device and projection apparatus
Title (en)
Reflection type liquid crystal display device and projection apparatus
Title (de)
Reflektive Flüssigkristallanzeige und Projektionsapparat
Title (fr)
Affichage à cristaux liquides et projecteur
Publication
Application
Priority
JP 2004061855 A 20040305
Abstract (en)
A reflection type liquid crystal display device for a projection apparatus comprises a glass substrate (15) provided with a transparent electrode (14), and a Si driving circuit substrate (10) provided with light reflecting electrodes (11), the glass substrate and the Si driving circuit substrate being disposed opposite to each other so that the transparent electrode and the light reflecting electrode are opposed to each other, with a liquid crystal layer composed of vertically aligned liquid crystals (20) being interposed therebetween, wherein at least the condition of d . DELTA n . ¾ DELTA epsilon ¾<2> >/= 5 is satisfied, where d ( mu m) is the thickness of the liquid crystal layer, DELTA n is the refractive index anisotropy of the vertically aligned liquid crystals, and ¾ DELTA epsilon ¾ is the magnitude of the dielectric constant anisotropy of the vertically aligned liquid crystals. <IMAGE>
IPC 1-7
IPC 8 full level
G02F 1/139 (2006.01); H04N 9/31 (2006.01); G02F 1/1337 (2006.01); G02F 1/1362 (2006.01)
CPC (source: EP KR US)
A45D 34/04 (2013.01 - KR); A45D 40/26 (2013.01 - KR); G02F 1/1393 (2013.01 - EP US); H04N 9/3105 (2013.01 - EP US); A45D 2034/002 (2013.01 - KR); A45D 2040/0006 (2013.01 - KR); A45D 2200/056 (2013.01 - KR); G02F 1/133742 (2021.01 - EP US); G02F 1/136277 (2013.01 - EP US); G02F 2202/42 (2013.01 - EP US); G02F 2203/02 (2013.01 - EP US)
Citation (examination)
WU, SHIN-TSON: "Reflective Liquid Crystal Displays", 2001, JOHN WILEY & SONS LTD., Chichester, UK, ISBN: 0-471-49611-1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1571853 A2 20050907; EP 1571853 A3 20051109; CN 1664660 A 20050907; CN 1664660 B 20100616; KR 101096410 B1 20111221; KR 20060043389 A 20060515; TW 200606536 A 20060216; TW I293393 B 20080211; US 2005231662 A1 20051020; US 8462299 B2 20130611
DOCDB simple family (application)
EP 05004578 A 20050302; CN 200510067729 A 20050304; KR 20050018009 A 20050304; TW 94106667 A 20050304; US 6936905 A 20050301